Finding the Fourth Proportional to 1,772.55, 2,656.71 and 675.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772.55 : 2,656.71 = 675.86 : x
2. Step 2: Convert to fraction form
   1,772.55/2,656.71 = 675.86/x
3. Step 3: Cross multiply
   1,772.55x = 2,656.71 × 675.86
4. Step 4: Simplify right side
   1,772.55x = 1,795,550.74
5. Step 5: Solve for x
   x = 1,795,550.74/1,772.55
6. Step 6: Final answer
   x = 1,012.98